Nijivoice Performer-Similarity Dispute and Service Closure

にじボイス声優類似音声問題・サービス終了

rights policy item·documented dispute·closed

Performer organizations alleged multiple synthetic voices resembled members; Algomatic disputed confirmed legal infringement, withdrew voices, and closed Nijivoice in February 2026.

Verified facts

Official site	https://algomatic.jp/news/notice_nijivoice_20251121 ↗
Geography	Japan
parties	Algomatic; Nijivoice; Japan Actors Union and partner organizations
item type	documented private dispute
identifier	Nijivoice dispute
filing date	unknown
jurisdiction	Japan
adoption date	unknown
effective date	2026-02-04
canonical title	Nijivoice Performer-Similarity Dispute and Service Closure
enforcement date	unknown
issuing authority	Algomatic / Nijivoice; Japan Actors Union and partner bodies
primary documents	https://algomatic.jp/news/notice_nijivoice_20251121
unresolved questions	Voice-matching methodology, identities and consent status, legal claims, settlement terms, successor screening process, and whether regulators investigated.
affected entity types	voice platform dispute; similarity and persona
documented interpretations	unknown
affected professional workflows	voice-model screening; similarity assessment; complaint handling; model withdrawal; service closure
current procedural legal status	Service closed 4 February 2026; dispute not judicially or administratively adjudicated.
amendments appeals superseding items	unknown
obligations permissions restrictions	Reported actions included requests concerning 33 and later 20 voices, voice withdrawals, and service closure. Parties differed on legal characterization; no adjudication was located.
affected organizations models datasets works	Algomatic; Nijivoice; Japan Actors Union; voice performers